Apply suggestions from code review

Co-authored-by: Jessica <[email protected]>

Author: bene2k1

changelog/june2023/2023-06-01-instances-added-new-production-optimized-and-workload-optimized.mdx

@@ -1,5 +1,5 @@
 ---
-title: New Production-Optimized and Specialized Instances available - POP2, POP2-HC, POP2-HM
+title: New Production-Optimized and Workload-Optimized Instances available - POP2, POP2-HC, POP2-HM
 status: added
 author:
     fullname: 'Join the #instance channel on Slack.'

changelog/september2023/2023-09-15-instances-added-stardust-learning-instances-in.mdx

@@ -1,5 +1,5 @@
 ---
-title: Stardust Development Instances available in WAW-2
+title: Stardust Learning Instances available in WAW-2
 status: added
 author:
     fullname: 'Join the #instance channel on Slack.'
@@ -9,6 +9,6 @@ category: compute
 product: instances
 ---
 
-We are excited to share that our Stardust Development Instances are now available in the WAW2 (Warsaw 2) region! This expansion provides you with even more options for deploying your Instances.
+We are excited to share that our Stardust Learning Instances are now available in the WAW2 (Warsaw 2) region! This expansion provides you with even more options for deploying your Instances.
 
 

pages/instances/concepts.mdx

@@ -15,7 +15,7 @@ import StorageBootOnBlock from '@macros/storage/boot-on-block.mdx'
 
 ## ARM Instances
 
-[ARM Instances](https://www.scaleway.com/en/cost-optimized-instances-based-on-arm/) are cost-effective and energy-efficient instances powered by Ampere Altra processors, optimized for AI innovation, real-time applications, and sustainable cloud computing.
+[ARM Instances](https://www.scaleway.com/en/cost-optimized-instances-based-on-arm/) are cost-effective and energy-efficient Instances powered by Ampere Altra processors, optimized for AI innovation, real-time applications, and sustainable cloud computing.
 
 
 ## Availability Zone